Krośnice Wastewater Treatment Plant: Secondary Treatment for 2,434 People in Lower Silesia

The Krośnice wastewater treatment plant is located in the village of Krośnice, within the Lower Silesian Voivodeship of Poland. It serves a population of 2,434, classifying it as a small agglomeration under Polish and EU regulations. The plant is situated in a rural area, contributing to local sanitation and environmental protection. The facility provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 4,658.00 m³/day and an actual discharge volume of 347.05 thousand m³ per year, the plant operates well below its capacity, indicating potential for future growth or seasonal variability. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The treated effluent is discharged into local water bodies, likely tributaries of the Oder River basin, which flows into the Baltic Sea. The plant plays a key role in protecting downstream ecosystems, including the Oder River and the Baltic Sea, from nutrient pollution and organic loads. Its operation supports the ecological health of the region's waterways and complies with national and EU environmental standards.

The Krośnice plant discharges into local streams that are part of the Oder River basin. The Oder River flows northward through Poland and Germany, eventually reaching the Baltic Sea. This watershed supports diverse aquatic life and is an important ecological corridor. The Baltic Sea is sensitive to nutrient inputs, making effective wastewater treatment crucial for preventing eutrophication and maintaining water quality in the region.